/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/ListUtilityFunctions.h
Returns the index of the last item in the Vector List. If Vector List is empty or invalid, the value -1 will be returned.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="GeometryScript|ListUtils", Meta=(ScriptMethod)) static int GetVectorListLastIndex ( [FGeometryScriptVectorList](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptVectorList) VectorList )